ma suo sa ni pe ka sumo?
IMPF eat FOC 1SG REL DEF squash
"I'm eating the squash" (just how much of the VP do I have to front?)

In this case pe becomes effectively a kind of accusative marker (literally "with respect to") for some pretty strange, not-very-Koa-like syntax. Yuck. But, so I just read, Basque (similarly sensitive to topic/focus) accomplishes this by focusing an unconjugated verb, then using a dummy verb in the usual spot with the usual inflection. Here's how that could look in Koa, with ete, possibly set to replace teke for "do":